Carbureter.



J. P. ANDRES. GARBURETBR. APPLICATION FILED NOV.13,1912.

Patented Aug. 4, 1914 2 SHBIITSSHBET 1.

THE NORRIS PETERS C0.. PHOTO-LITIIO. WASHINGTON, D C

J. P. ANDRES.

CARBURETBR.

APPLICATION FILED N0v.13, 1912,

1, l 06,070. Patented Aug. 4, 1914 2 SHEETS*SHBET 2.

THE NURRIS PETERS C0, PHUTO-LI''IIO.. WASH/NG FUN. l) C UNITED STATES FATEENT @FFME` J. FRANK ANDRES, OF S'I.` LOUIS, MISSOURI, ASSIGNOR TO UNITED STATES SAFETY GAS MACHINE COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OF MISSOURI.

CARBURETER.

Specification of Letters Patent.

Patented Aug. 4L, 1914.

To all whom it may concern:

Be it known that I, J. FRANK ANDRES, a citizen of the United States residing at the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Carbureters, of `which the following is a specification.

rlhis invention relates to improvements in carbureters and` embodies novel improvements in (the carbureter disclosed in my United States Letters Patent No. 876,678, granted January 14, 1908.

The primary object of the present invention is to provide a carburetor in which air under pressure enters at the bottom of same,

passes upwardly through a serpentine or zigzag course between a series of partitions or diaphragme, and mixes with the vapors of a hydrocarbon, which enters at the topof the carbureter and flows downwardly by gravity through the same course, the mixture being drawn from the top of the carbureter and used for heating, cooking, and illuminating purposes, the novelty residing in the provision of improved partitions or diaphragms for the carbureter.

With this object in view, the present invention consists in the provision of a carbureter in which there is arranged a series of partitions or diaphragms, each of which is formed of cloth or other suitable fabric and having an opening at one point therein, the openings in the partitions or diaphragms being arranged in staggered relation, so as to produce a serpentine or zigzag course for the air ascending from the air inlet to the service pipe and, also, for the hydrocarbon descending from the hydrocarbon inlet to the bottom of the carbureter, and the cloth or other fabric being coated or filled to such extent with any organic substance, such as sodium silicate (water glass) or other suitable filler, impervious to the hydrocarbon used that the threads thereof will be hydrocarbon-proof and the hydrocarbon will merely percolate through each partition or diaphragm and hangin drops on the lower side thereof, permitting the hydrocarbon to evaporate from both sides of each partition or diaphragm.

Further, the present invention consists of the novel features of construction and arrangement of parts hereinafter more fully described and pointed out in the claims.

In the accompanying drawings forming part of this specification, in which like numbers of reference denote like parts wherever they occur, Figure 1 is a vertical sectional view of a carburetor equipped with a series of the improved partitions or diaphragms embodying the present invention; Fig. 2 is a perspective view of one of the partitions, showing the upper side thereof; and Fig. 3 is a perspective view of same, showing the lower side thereof.

In the drawings, 1 designates the carbureter which is preferably formed of an upright cylindrical tank, the lower end being closed by a bottom plate 2, which is concave so as to slope toward the opening 3 for draining the carburetor, which opening is closed by a removable plug l1. The upper end of the carbureter 1 has a ring 5 shrunk or otherwise secured upon same, said ring having an angle-iron cross-section with an outwardly laringfiange G to which the cover 7 of the carburetor is fastened by bolts 8 or other suitable means.

y The air under pressure enters the carbu- `roter through an inlet pipe 9 at a point ad- `jacent to the bottom 2, and the mixture is drawn from the upper end of the carburetor through a service pipe 10. Located within lthe carburetor :intermediate the inlet pipe S) and the service pipe 10 is a series of hori zontally-disposed partitions or diaphragms 11. Each partition or diaphragm 11 is formed of a piece of cloth, such as cheese `cloth or any other suitable fabric, that is stretched over the upper edge of a hoop 12 ,like a drum head, leaving an opening 13 adjacent to one side for an air passage, the `edge of the cloth being stretched over the `side of the hoop and being fastened by tacks 1L or other suitable means. The hoop 12 l'is preferably formed of wood, though, of jcourso, may be formed of any desired ma- ;terial, and has its ends tacked or otherwise secured together so that the hoop will be of such size when the cloth is stretched thereupon that same will tit snugly within the carburetor. The partition or diaphragms 11 are placed one on top of another within the carbureter 1 with the openings 13 in the former arranged in staggered relation, so as to produce a serpentine or zigzag passage for the air from the inlet pipe 9 tothe serviicc pipe 10, the lower-most partition or diaphragm 11 being supported on a bell-shaped member 15 resting on the bottom 2, which member receives the air from the inlet pipe 9 and cont-ins an opening 16 to allow the air to pass upwardly through the circuitous course formed by the partitions or diaphragme 11 as just described. Another member 17, .vhich is preferably bell-shaped, rests upon the uppermost partition or diaphragm 11 and affords a weight which helps to hold the partitions or diaphragme in place, same containing an opening 18 to allow the hydrocarbon to flow from the pipe 19 into tie upper end of the zigzag passage for the air and, also, to permit the mixture formed within the zigzag passage in the manner hereinafter described to pass into the chamber 20 in the upper end of the carbureter between the member 17 and the cover 7, from which chamber the mixture escapes through the service pipe 10. The hydrocarbon which is delivered from the pipe 19 into the carbureter flows through the opening 18 in member 17 and falls upon the upper partitie-n or diaphragm 11, thence flows over and across the upper partition or diaphragm toward the opening 13 in same through which it flows and falls upon the second partition or diaphragm, then over and across the second partition or diaphragm toward the opening 13 in same, and, so on, gravitating through the zigzag passage toward the bottom of the carburetor. The hydrocarbon descending t .rough the zigzag passage mixes with the air ascending through the same passage, with the result of producing carbureted air or mixture which fills the chamber 2O in the upper end of the carburetor, from which the carbureted air or mixture may be drawn through 'the service pipe 10 for cooking, heating, and illuminating purposes.

l he cloth of each partition or diaphragm 11 is coated or painted with or dipped in liquid glass or other suitable filler impervious to the hydrocarbon used and ofA a consistency that, when set, will render the threads of the cloth hydrocarbon-proof and will fill the iiiterstices between the threads to such extent tl it some of the hydrocarbon will percolate therethrough and hang `in drops upon the lower side thereof in the most perfect position for evaporation by the air passing therebeneath. 1n this way, the hydrocarbon is permitted to evaporate from both sides of each partition or diaphragm, thereby doubling?, the evaporating surface. The coating or filler provides each cloth partition or diaphragm 11 with a surface over which the hydrocarbon flows readily in descending through the zigzag passage in the manner hereinabove described, and prevents the cloth from stretching and sagging' and the hydrocarbon from standing in a pool upon the partition or diaphragm and from -hoop 12.

strings or cords stretched across the lower 1side of same so as to form somewhat of a network, Ls best seen in F 3, said string or strings being sewn to the cloth 11 or otherwise attached to the lower edge of the By this arrangement, when the partitions or diaphragms 11 are assembled one on top of another within the carburetor, the strings 21 on the lower side of each partition or diaphragm extend across the upper side of the cloth partition or diaphragm therebeneath and thereby prevents the preslsure ofthe air from causing either the latter `to bulge upwardly and contact the former, `or the former to sag and touch the latter. ln .this way the zigzag passage for the air and lhydrocarbon is prevented from becoming obstructed. lt will be obvious that it is unnecessary to provide the bottom. partition or diaphragm 11 with the string or :strings 21.

lt will b e readily observed that the partitions or diaphragms 11 are simple and inexpensive to manufacture and that same greatly reduce the weight of the carburetor. Furthermore, when the partitions or diaphragme 11 are forced or driven together` 'one on top of another within the carburetor,

the wooden hoops 12 form practicallya continuous wood lining which prevents the vapors from coming in contact with the metallic shell of the carburetor, thus preventing the formation of frost during excessive evaporation. One great advantage arising from the use of these improved partitions or diaphragme resides in the fact that the efflciency of the carburetor is greatly increased thereby, for the reason that by forming the partitions or diaphragms of cloth and wood, these materials will not lower the temperature within the carbureter in times of eX- cessive evaporation as occurs when metallic partitions or diaphragms are used.

From the foregoing, it is believed the operation of the apparatus will be apparent and needs no further description.

I claim:

1. 1n a carbureter, the combination of a series of partitions or diaphragms within same, each comprising a hoop having cloth or other fabric stretched across the upper side thereof so as to leave an opening adjacent to one side thereof and string or the like stretched across the lower side of same, said partitions or diaphragins being arranged one on top of another with the openings therein in staggered relation to form a circuitous passage, and means for circulating the hydrocarbon and air through the circuitous passage in opposite directions.

2. A partition or diaphragm for a carbureter comprising a hoop having cloth or other fabric stretched across the upper side thereof so as to leave an opening adjacent to one side thereof and string or the like stretched across the lower side of same.

3. A partition or diaphragm for a carbureter comprising a hoop having cloth or other fabric stretched across the upper side thereof so as to leave an opening adjacent to one side thereof and string or the like stretched across the lower side of same, the cloth or other fabric having a coating or filler, which is impervious to the hydrocarbon and fills the interstices of same to such extent that the hydrocarbon will percolate therethrough and hang in drops on the lower side thereof.

4. In combination with a carbureter having an air-inlet at or adjacent to the bottom thereof and an outlet and a supply pipe at or adjacent to the top of same, of a series of partitions or diaphragms intermediate the inlet and outlet, each partition or diaphragm comprising a hoop having cloth or other fabric stretched across the upper side thereof so as to leave an opening adjacent to one side of saine and string or the like stretched across the lower side thereof, said partitions or diaphragms being arranged one on top of another with the openings therein in staggered relation to form a circuitous passage for the hydrocarbon and the air, and the cloth or other fabric having a coating or filler, which is impervious to the hydrocarbon and fills the interstices of the former to such extent that the hydrocarbon will percolate therethrough and hang in drops on the lower side thereof.`

5. In a carbureter, a series of partitions each composed of a hoop having fabric stretched across its upper side and fabric engaging means extending across its lower side, the hoops being arranged in superimposed relation to cause said means of an upper partition to limit the extent of upward f movement of the fabric of the lower adjacent partition by engagement with the fabric.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

J. FRANK ANDRES.

Witnesses GEORGE G. ANDERSON, HARRY I-I. Reiss.

Copies of this patent may be obtained for tive cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

